An illumination device including a light-emitting tube having a light-emitting member in which light emission is carried out between a pair of electrodes and sealing members located on both sides of the light-emitting member, a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward, and a transparent plate disposed in a distal end portion of the first reflecting mirror, a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror being fixed to at least one of the sealing member and the transparent plate, the transparent plate and the second reflecting mirror are brought into contact or fixedly attached to each other, and at least one of the transparent plate and the second reflecting mirror is brought into contact or fixedly attached to the sealing member.
Legal claims defining the scope of protection, as filed with the USPTO.
1. An illumination device, comprising: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate formed at a distal end portion of the first reflecting mirror; a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, the second reflecting mirror being fixedly attached to at least one of the sealing members and the transparent plate, the transparent plate and the second reflecting mirror being brought into contact or mounted in a fixedly attached condition, and at least one of the transparent plate and the second reflecting mirror being brought into contact or fixedly attached to the sealing member.
2. The illumination device according to claim 1 , the fixed attachment being carried out with an adhesive.
3. The illumination device according to claim 2 , the adhesive being an aluminum nitride-based adhesive or an adhesive based on a mixture of silica and alumina.
4. The illumination device according to claim 1 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
5. The illumination device according to claim 1 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
6. The illumination device according to claim 1 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
7. The illumination device according to claim 1 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
8. An illumination device, comprising: a light-emitting tube having a light-emitting member and sealing members located on both sides of the light-emitting member, the light-emitting member including a pair of electrodes, light emission is carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, and reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate disposed in a distal end portion of the first reflecting mirror; a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, the second reflecting mirror being fixedly attached to the transparent plate; and a gap being provided between the transparent plate, the second reflecting mirror, and the light-emitting tube.
9. The illumination device according to claim 8 , the fixed attachment being carried out with an adhesive.
10. The illumination device according to claim 9 , the adhesive being an aluminum nitride-based adhesive or an adhesive based on a mixture of silica and alumina.
11. The illumination device according to claim 8 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
12. The illumination device according to claim 8 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
13. The illumination device according to claim 8 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
14. The illumination device according to claim 8 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
15. An illumination device, comprising: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate disposed in a distal end portion of the first reflecting mirror; and a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, the second reflecting mirror is formed integrally with the transparent plate.
16. The illumination device according to claim 15 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
17. The illumination device according to claim 15 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
18. The illumination device according to claim 15 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
19. The illumination device according to claim 15 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
20. An illumination device, comprising: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate disposed in a distal end portion of the first reflecting mirror; and a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, the second reflecting mirror being disposed opposite to an outer peripheral surface of the light-emitting member with a gap being formed therebetween and being fixedly attached by being pressed against an outer periphery of one of the sealing members in the vicinity of the light-emitting member with a spring wound around the outer peripheral surface with a gap therebetween.
21. The illumination device according to claim 20 , the spring being composed of an electrically conductive coil and one end of the electrically conductive coil being connected to a lead wire led out from a sealing member on a side opposite to that where the spring is disposed.
22. The illumination device according to claim 20 , the transparent plate being fixedly attached to the sealing member with an adhesive.
23. The illumination device according to claim 22 , the adhesive being an aluminum nitride-based adhesive or an adhesive based on a mixture of silica and alumina.
24. The illumination device according to claim 20 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
25. The illumination device according to claim 20 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
26. The illumination device according to claim 20 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
27. The illumination device according to claim 20 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
28. A projector, comprising: an illumination device; a light modulation device to receive an incident light from the illumination device and modulate the incident light according to a given image information, the illumination device being an illumination device including: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate disposed in a distal end portion of the first reflecting mirror; and a second reflecting mirror, that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, being fixedly attached to at least one of the sealing members and the transparent plate, the transparent plate and the second reflecting mirror being brought into contact or fixedly attached, and at least one of the transparent plate and the second reflecting mirror being brought into contact or fixedly attached to the sealing member.
29. The projector according to claim 28 , the fixed attachment being carried out with an adhesive.
30. The projector according to claim 28 , the adhesive being an aluminum nitride-based adhesive or an adhesive based on a mixture of silica and alumina.
31. The projector according to claim 28 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
32. The projector according to claim 28 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
33. The projector according to claim 28 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
34. The projector according to claim 28 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
35. A projector, comprising: an illumination device; a light modulation device to receive an incident light from the illumination device and modulate the incident light according to a given image information; the illumination device being an illumination device including: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate disposed in a distal end portion of the first reflecting mirror; a second reflecting mirror that, encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, being fixedly attached to the transparent plate; and a gap being provided between the transparent plate, the second reflecting mirror, and the light-emitting tube.
36. The projector according to claim 35 , the fixedly attached attachment being carried out with an adhesive.
37. The projector according to claim 36 , the adhesive being an aluminum nitride-based adhesive or an adhesive based on a mixture of silica and alumina.
38. The projector according to claim 35 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
39. The projector according to claim 35 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
40. The projector according to claim 35 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
41. The projector according to claim 35 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
42. A projector, comprising: an illumination device; a light modulation device to receive an incident light from the illumination device and modulate the incident light according to a given image information; the illumination device being an illumination device including: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; and a transparent plate disposed in a distal end portion of the first reflecting mirror; and a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, the second reflecting mirror being formed integrally with the transparent plate.
43. The projector according to claim 42 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
44. The projector according to claim 42 , a substrate of the second reflecting mirror being composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
45. The projector according to claim 42 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
46. The projector according to claim 42 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
47. A projector, comprising: an illumination device and a light modulation device to receive an incident light from the illumination device and modulate the incident light according to a given image information, the illumination device including: a light-emitting tube having a light-emitting member and sealing members located on two sides of the light emitting member, the light emitting member including a pair of electrodes, light emission being carried out between the pair of electrodes; a first reflecting mirror to hold the light-emitting tube, reflect the light emitted from the light-emitting tube, and direct the light forward; a transparent plate disposed in a distal end portion of the first reflecting mirror; a second reflecting mirror that encloses a front portion of the light-emitting member and reflects the light from the light-emitting member toward the first reflecting mirror, the second reflecting mirror being disposed opposite to an outer peripheral surface of the light-emitting member with a gap being formed therebetween and being fixedly attached by being pressed against an outer periphery of the sealing member in the vicinity of the light-emitting member with a spring wound around the outer peripheral surface with a gap therebetween.
48. The projector according to claim 47 , the spring being composed of an electrically conductive coil and one end of the electrically conductive coil being connected to a lead wire led out from a sealing member on the side opposite to that where the spring is disposed.
49. The projector according to claim 47 , the transparent plate being fixedly attached to the sealing member with an adhesive.
50. The projector according to claim 49 , the adhesive being an aluminum nitride-based adhesive or an adhesive based on a mixture of silica and alumina.
51. The projector according to claim 47 , the transparent plate being composed of either a transparent material with a low thermal expansion coefficient or a transparent material with a high thermal conductivity.
52. The projector according to claim 47 , the second reflecting mirror including a substrate composed of either a material with a low thermal expansion coefficient or a material with a high thermal conductivity.
53. The projector according to claim 47 , a heat radiation fin being provided at an outer peripheral portion of the transparent plate.
54. The projector according to claim 47 , one end of one of the sealing members protruding from a region surrounded by the first reflecting mirror and the transparent plate through the transparent plate into an open region.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
March 12, 2004
June 13, 2006
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